If you are building your own incubator, do not use light bulbs and water heater thermostats.Oh, I found this cabinet, looks like a printer cabinet. It's very heavy and it already has a fan in it venting holes and 3 shelves. I think it would make a wonderful incubator but they wanted $50 for it and it would still need some tweaking to make it into an incubator. If they had wanted half that price, I would have bought it. I don't really need it, I have 2 LG incubators but it would have made a really nice incubator.
Incubator warehouse has improved their kits for this year and something like that is better.
I have seen too many try to use light bulbs and bad thermostats and then wonder why the egg all die.